package socket;

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

public class Server3 {
    private ServerSocket serverSocket;

    public Server3() {
        System.out.println("服务器启动中");
        try {
            serverSocket = new ServerSocket(8888);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("服务器启动完成");
    }

    public void start(){
        try {
            System.out.println("等待客户端连接");
            Socket socket = serverSocket.accept();
            System.out.println("一位客户端连接成功");

            Runnable r = new ClientHandler(socket);
            Thread t = new Thread(r);
            t.start();
        } catch (IOException e) {
            e.printStackTrace();
        }


    }

    public static void main(String[] args) {
        Server3 s = new Server3();
        s.start();
    }

    private class ClientHandler implements Runnable{
        private Socket socket;
        private String host;//记录客户端的IP地址

        public ClientHandler(Socket socket) {
            this.socket = socket;
            host = socket.getInetAddress().getHostAddress();//通过socket获取远端计算机的IP地址的字符串格式
        }

        public void run() {
            try {
                InputStream in = socket.getInputStream();
                InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br = new BufferedReader(isr);

                OutputStream out = socket.getOutputStream();
                OutputStreamWriter osw = new OutputStreamWriter(out,StandardCharsets.UTF_8);
                BufferedWriter bw = new BufferedWriter(osw);
                PrintWriter pw = new PrintWriter(bw,true);

                String line;
                while ((line= br.readLine())!=null) {
                        System.out.println(host+"说:" +line);
                        pw.println(host+"说:" +line);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}
